CN101352967A - Image recording apparatus - Google Patents
Image recording apparatus Download PDFInfo
- Publication number
- CN101352967A CN101352967A CNA2008101311089A CN200810131108A CN101352967A CN 101352967 A CN101352967 A CN 101352967A CN A2008101311089 A CNA2008101311089 A CN A2008101311089A CN 200810131108 A CN200810131108 A CN 200810131108A CN 101352967 A CN101352967 A CN 101352967A
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- China
- Prior art keywords
- jet
- ink
- wiper
- jet head
- along
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 76
- 230000007246 mechanism Effects 0.000 claims description 54
- 239000007921 spray Substances 0.000 claims description 6
- 239000000976 ink Substances 0.000 description 337
- 239000010985 leather Substances 0.000 description 33
- 238000012423 maintenance Methods 0.000 description 33
- 238000004140 cleaning Methods 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 10
- 230000003028 elevating effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007850 degeneration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 244000001591 balata Species 0.000 description 1
- 235000016302 balata Nutrition 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/145—Arrangement thereof
- B41J2/155—Arrangement thereof for line printing
Landscapes
- Ink Jet (AREA)
Abstract
An image recording apparatus includes a plurality of liquid ejection heads, and a plurality of wipers. The plurality of liquid ejection heads are divided into a plurality of head groups each including two of the liquid ejection heads. When in a wiper withdrawal position, the wiper associated with one of the liquid ejection heads belonging to each head group is positioned so as to overlap the one liquid ejection head along a direction perpendicular to one direction and in addition overlap the other of the liquid ejection heads along the one direction, while the wiper associated with the other liquid ejection head is positioned so as to overlap the other liquid ejection head along the perpendicular direction and in addition overlap the one liquid ejection head along the one direction.
Description
Technical field
The present invention relates to a kind of image recorder with jet head liquid of atomizing of liquids.
Background technology
The open No.2005-132025 of Japanese laid-open patent has disclosed a kind of ink-jet printer that comprises four ink guns and maintenance unit.Four ink guns are arranged side by side along sheet transport direction.Maintenance unit is safeguarded on four ink guns.In ink-jet printer, maintenance unit has supporting member, scraper plate, wiper rolls, blotter and four blocks.Supporting member can move horizontally along sheet transport direction.Scraper plate, wiper rolls, blotter and four blocks are installed on the supporting member.When maintenance unit was in the cleaning positions, each block was covered with nozzle surface and carries out cleaning operation, thus from nozzle to the block ink-jet.Then, each block separates with nozzle surface.During withdrawn position moves, blotter, wiper rolls are relative with nozzle surface with the scraper plate order at maintenance unit, thereby absorb and wipe China ink by corresponding member.Like this, on four ink guns, safeguard.
In the ink-jet printer disclosed in the open No.2005-132025 of above-mentioned Japanese laid-open patent, the withdrawn position of maintenance unit is positioned at the downstream of ink gun along sheet transport direction, and this has increased the size of ink-jet printer on sheet transport direction.
Summary of the invention
A kind ofly has the image recorder that also can reduce size under the situation of a plurality of jet head liquids even the object of the present invention is to provide.
According to an aspect of the present invention, provide a kind of image recorder, it comprises a plurality of jet head liquids, recording medium conveyance mechanism, a plurality of wiper and travel mechanism.Described a plurality of jet head liquid has jet face respectively, described jet face arranges according to a kind of like this mode, thereby described jet face forms two rows that extend along a direction and two jet faces being included in addition among the different rows are not overlapped along the direction vertical with direction with respect to direction in the plane of jet face.Described a plurality of jet head liquid is divided into a plurality of injector head groups, and each injector head group comprises two corresponding jet head liquids with different rows.Recording medium conveyance mechanism when making recording medium relative with described jet face along a described direction conveying recording medium.The jet face of a plurality of wiper wipes jet head liquids.Travel mechanism makes that be used for two wipers of two jet faces that wiping belongs to two jet head liquids of each injector head group moves on two relative directions with respect to vertical direction, makes described two wipers keep contacting with jet face simultaneously.In the time of in not being in not the wiper withdrawn position relative with jet face, be arranged to along a vertical direction and a described jet head liquid overlapping with a wiper that is associated in a plurality of jet head liquids that belong to each injector head group, and in addition another in a described direction and the described a plurality of jet head liquid is overlapping, simultaneously, when in the wiper withdrawn position, the wiper that is associated with described another jet head liquid is arranged to along vertical direction and described another jet head liquid overlapping, and overlapping along a described direction and a described jet head liquid in addition.
In aspect this, the jet face of a plurality of jet head liquids is arranged to along two rows of a direction extension, thereby two jet faces that belong to different rows do not have overlapped along the direction vertical with a described direction.Therefore, in the zone with respect to vertical direction and each jet head liquid adjacency free space appears.The a plurality of wipers that are associated with the respective liquid injector head are retracted in this space.Wiper is retracted in the free space make to be provided with to be specifically designed to wiper is arranged on wherein another space.Therefore, the size that can realize image recorder reduces.
In this image recorder, in described a plurality of injector head group each is made of two jet head liquids that spray same color liquid, and described travel mechanism moves a plurality of wipers in the unit of two wipers that are associated with described injector head group.Described image recorder also comprises mobile controller, described mobile controller is used for controlling described travel mechanism according to a kind of like this mode, thus two jet faces of two wiper wipes in described injector head group that are associated with selected injector head group in described a plurality of injector head groups.By this structure, can be by selecting wiper in the unit that is controlled at two wipers that are associated with each injector head group that is undertaken by mobile controller and making it mobile.Therefore, can be only will in the injector head group, need the China ink in the wipe surfaces of wiping to wipe by wiper.
In this image recorder, described travel mechanism comprises: a plurality of belts, each belt be connected with described two wipers that described injector head group is associated and advance along vertical direction, make described two wipers move thus along described rightabout; And a plurality of switching device shifters, each can both from drive source to the state of belt transferring power with between the state of described belt transferring power, do not switch from drive source.Described mobile controller makes in the described switching device shifter at least one switch to from the state of drive source to the belt transferring power.By this structure, mobile controller can only switch a switching device shifter in case from drive source to the belt transferring power.Therefore, by the wiper jet face of wiping in an injector head group only.
In this image recorder, described mobile controller switches to all described switching device shifters from the state of drive source to the belt transferring power.By this structure, mobile controller can switch all switching device shifters in case from drive source to the belt transferring power.Therefore, the jet face in all injector head groups can be by wiper wipes.This can shorten and is used for by the required time of all jet faces of wiper wipes.
In this image recorder, each in described a plurality of belts is arranged in and surrounds two jet head liquids that belong to described injector head group and described two wipers that are associated with described injector head group in the plane.Therefore, can be so that the space that is formed between the injector head group be less.
In this image recorder, in described a plurality of belt each is arranged between described two jet head liquids that belong to described injector head group according to a kind of like this mode, thereby those parts that described belt extends along vertical direction with respect to vertical direction toward each other.By this structure, even when belt is arranged between the injector head group, also can be so that the space that is formed between the injector head group is less, this be because those parts that described belt extends along vertical direction with respect to vertical direction toward each other.In addition, can be so that the length of belt to be shorter relatively, this can reduce to be applied to the load on the drive source.
This image recorder also comprises a plurality of blocks, and described a plurality of blocks cover described jet face by contacting with described jet face.Each belt be connected with two blocks that described two jet head liquids that belong to described injector head group are associated, and advance along vertical direction, thus described two blocks along vertical direction in the opposite direction in the closure position relative with not do not move between the block withdrawn position relative with described jet face with described jet face.By this structure, also can in the assembly of two blocks that are associated with the injector head group, select a plurality of blocks and make it mobile.
In this image recorder, in being in described block withdrawn position, the described block that is associated with a described jet head liquid is arranged to along a vertical direction and a described jet head liquid overlapping, and it is overlapping along a described direction and another jet head liquid in addition, simultaneously, in the time of in being in described block withdrawn position, the described block that is associated with described another jet head liquid is arranged to along described vertical direction and described another jet head liquid overlapping, and overlapping along a described direction and a described jet head liquid in addition.By this structure, a plurality of blocks that are associated with the respective liquid injector head are arranged in the free space with respect to vertical direction and each jet head liquid adjacency.This can further reduce the size of liquid injection device.
In this image recorder, when described wiper is arranged in the described wiper withdrawn position, the described block that is associated with described jet head liquid is arranged in such position, thereby the described wiper that is associated with described jet head liquid is clipped between described block and the described jet head liquid with respect to described vertical direction.This can further reduce the size of liquid injection device.
Description of drawings
From provide in conjunction with the accompanying drawings the following describes will be more all sidedly understand other and further purpose, feature and advantage of the present invention, wherein:
Fig. 1 is the plane according to the major part of the ink-jet printer of first embodiment of the invention;
Fig. 2 is along the cutaway view of cutting open at the II-II line shown in Fig. 1;
Fig. 3 illustrate see from its bottom surface in four injector head groups shown in Fig. 1;
Fig. 4 is a block diagram, schematically illustrated controller;
Fig. 5 A, 5B and 5C illustrate along with the time at cleaning operation that carries out on the ink gun and the wiping operation that on ink ejection face, carries out;
Fig. 6 A, 6B and 6C illustrate being used for the capping operation that covers ink ejection face along with the time;
Fig. 7 is the plane according to the major part of the ink-jet printer of second embodiment of the invention; And
Fig. 8 is the plane according to the major part of the ink-jet printer of third embodiment of the invention.
The specific embodiment
Fig. 1 is the plane according to the major part of the ink-jet printer of first embodiment of the invention.Fig. 2 is along the cutaway view of cutting open at the II-II line shown in Fig. 1.Fig. 3 illustrate see from its bottom surface in four injector head groups shown in Fig. 1.
As shown in Figure 1, be the line color inkjet printer that comprises four injector head group 3a, 3b, 3c and 3d as ink-jet printer 1 according to the image recorder of first embodiment of the invention, each injector head group is made of two ink guns 2 or jet head liquid.This ink-jet printer 1 has the paper supply unit (not shown) and the paper delivery unit (not shown) at the place, upper and lower that lays respectively at Fig. 1.
In ink-jet printer 1, be located between paper supply unit and the paper delivery unit with four injector head group 3a, position that 3b, 3c are relative with 3d as the paper delivering mechanism 10 of recording medium conveyance mechanism.Paper delivering mechanism 10 will as the paper sheet delivery of recording medium to as the relative position of the ink ejection face 4 of the jet face of eight ink guns 2.As shown in Figure 1, paper delivering mechanism 10 has: a pair of leather belt roller 6 and 7, and they are arranged to clip four injector head group 3a, 3b, 3c and 3d with respect to sub scanning direction (i.e. above-below direction in Fig. 1); And annular belt conveyor 8, it be wrapped in that on leather belt roller 6 and 7 between them, to stretch.Carry motor 97 (referring to Fig. 4) to apply driving force to leather belt roller 7, leather belt roller rotates along predetermined direction thus.When predetermined direction rotated, belt conveyor 8 was along sheet transport direction A (that is, along from top to bottom direction in Fig. 1) conveyance of sheets at leather belt roller 7.
Each ink gun 2 have along main scanning direction (for the direction vertical with sheet transport direction A: vertical direction) Shen Chang rectangular shape, as illustrated in fig. 1 and 2.Each ink gun 2 has head main body 5 at its lower end.
Being used for therein the memory unit of temporary transient storage China ink is fixed on head main body 5 top.This memory unit part is covered with by lid 14.With reference to Fig. 1, pipe joint 11 is connected on the left end of memory unit.The China ink that provides by pipe joint 11 is stored in the black holder that is formed in the memory unit.Memory unit is longer than head main body 5 on main scanning direction.The part 12 of memory unit is extended on the both sides of memory unit with respect to main scanning direction.These parts 12 are as the standing part that is fixed on the lifting frame (not shown) that is equipped with into each memory unit.Each ink gun 2 is fixed on the lifting frame by standing part.Lifting frame can move up and down (referring to Fig. 4) by an elevating mechanism 98.
Usually, eight ink guns 2 are arranged in the print position position of the ink gun shown in Fig. 22 (that is).When ink gun 2 was in the print position, the conveyor surface 9 of each ink ejection face 4 and belt conveyor 8 was parallel to each other and extends at a distance of predetermined space ground.By this structure, when and then the paper of being carried by belt conveyor 8 passes through in proper order, on paper, form desired image below eight head main body 5.On the other hand, for the attended operation that carries out on ink gun 2, an elevating mechanism 98 moves up the lifting frame of fixing the ink gun 2 that will carry out attended operation on it.This makes and is fixed on the ink jet head maintenance position (referring to Fig. 5 A) that the ink gun 2 on this lifting frame enters into above print position and separates with it.During attended operation, have only the ink gun 2 that will carry out attended operation can be arranged in the maintenance position, perhaps optionally all eight ink guns 2 can be arranged in the maintenance position.
As shown in Figure 3, ink-jet zone 4b that be used for the nozzle of small diameter 4a of ink-jet, is formed by the set of nozzle 4a and the exterior lateral area 4c that surrounds ink-jet zone 4b are located at the bottom surface of head main body 5, promptly are located on the ink ejection face 4 of ink gun 2.
As shown in figs. 1 and 3, eight ink guns 2 are patterned arrangement in a zigzag in such a way, thereby these ink ejection faces 4 form two rows, four ink ejection faces 4 that are arranged side by side along sub scanning direction are drawn together in every package, and the ink ejection face 4 that is included in addition among the different rows is not overlapped with respect to main scanning direction.Eight ink guns 2 are divided into four ink gun group 3a, 3b, 3c and 3d, and each injector head group comprises two ink guns 2.The ink ejection face 4 of two ink guns 2 is adjacent to each other with respect to sub scanning direction, and belongs to different rows.Four ink gun group 3a, 3b, 3c and 3d are arranged side by side along sub scanning direction, thereby make eight ink guns 2 be patterned arrangement in a zigzag with respect to sub scanning direction.
Its ink ejection face of two ink guns 24 that is included in each of ink gun group 3a, 3b, 3c and 3d overlaps each other along sub scanning direction, thereby it is continuous along main scanning direction to be used for the print area (being ink-jet zone 4b) that prints at paper.More particularly, two ink guns 2 that are included in the identical ink gun group arrange in such a way, thus between the adjoining nozzles 4a in the 4b of the ink-jet zone of an ink gun 2 along the interval of main scanning direction and the inside (i.e. Far Left in Fig. 3) nozzle 4a and being formed in being formed on the ink ejection face 4 of the right ink gun 2 in Fig. 3 that is included among the ink gun group 3a be included in the ink ejection face 4 of left side ink gun 2 in Fig. 3 among the ink gun group 3a inside interval between (i.e. rightmost in Fig. 3) nozzle 4a identical.Among other ink gun group 3b, 3c and the 3d each comprises two ink guns 2, and they are according to arranging with mode identical in ink gun group 3a.Eight ink guns 2 spray four kinds of different colours (magenta, yellow, cyan and black) China inks, and every kind of color is corresponding with among four ink gun group 3a, 3b, 3c and the 3d each.That is to say, belong to being adjacent to each other and two ink guns 2 of being included among the different rows spray the same color China inks of identical ink gun group along sub scanning direction.
Next will the maintenance unit of safeguarding on ink gun 2 60 be described.As illustrated in fig. 1 and 2, maintenance unit 60 has 61 and four wipers of four blocks 63, four blocks 62 and four wipers 64, travel mechanism 70 and pallets 69.61 and four wipers 63 of four blocks are associated with four ink guns 2, and these four ink guns belong to corresponding ink gun group 3a, 3b, 3c and the 3d that is arranged side by side along sub scanning direction and are included in wherein among the row (arrange on the left side one in Fig. 1).62 and four wipers 64 of four blocks are associated with four ink guns 2, and these four ink guns belong to corresponding ink gun group 3a, 3b, 3c and the 3d that is arranged side by side along sub scanning direction and are included in wherein among the row (arrange on the right one in Fig. 1).Travel mechanism 70 makes 61 and 62 and eight wipers 63 of eight blocks and 64 move along main scanning direction on ink gun group basis.Pallet 69 includes eight 61 and 62, eight wipers 63 of block and 64 and travel mechanism 70 therein.Pallet 69 has the passage 68a that extends through pallet 69 along vertical direction.This passage 68a is positioned at the position relative with each ink gun 2.This passage 68a has rectangular shape in plane, and has such size, thereby in eight ink ejection faces 4 of corresponding ink gun 2 each can be relative with conveyor surface 9 fully.
In base material 65, be formed with two groove 65a that upwards open along vertical direction.Two groove 65a are arranged side by side along main scanning direction.Place, bottom at groove 65a is formed with through hole 65b.Owing to be formed with through hole 65b, so in cleaning operation, be ejected in the block 61,62 and the China ink that is collected in the groove 65a can be discharged in the unshowned useless black holder by through hole 65b.
As shown in Figure 2, block each in 61,62 by three springs 67 from supported underneath.Because block each in 61,62 is supported by three springs 67, thus the impact that when annular protuberance 66 contacts with ink ejection face 4, causes can be cushioned, thereby ink ejection face 4 is not easy by annular protuberance 66 damages.
As shown in Figure 1, each in the wiper 63,64 be arranged on corresponding ink gun 2 and with block 61,62 that this ink gun 2 is associated between.The development length of wiper 63,64 is substantially equal to the width of the ink ejection face 4 of corresponding ink gun 2 with respect to sub scanning direction.Wiper 63,64 by elastomeric material for example rubber make.Wiper 63,64 is erected on the described gripper shoe 71,72 in back, and these gripper shoes are supporting by spring 67 and blocking a shot 61,62.Do not make under block 61,62 situations about moving down by block height adjustment mechanism 99, the far-end of wiper 63,64 is in the identical height place of base material with block 61,62 basically.
In the time of in not being arranged on not the withdrawn position relative (as shown in Figure 1) with ink ejection face 4, the wiper 63 that is used for ink gun group 3a be arranged in along main scanning direction with overlapping at the corresponding left side of Fig. 1 ink gun 2 and along sub scanning direction with in the right of Fig. 1 ink gun 2 position overlapped.In the time of in not being arranged on not the withdrawn position relative (as shown in Figure 1) with ink ejection face 4, the wiper 64 that is used for ink gun group 3a be arranged in along main scanning direction with overlapping at corresponding the right of Fig. 1 ink gun 2 and along sub scanning direction with in the corresponding left side of Fig. 1 ink gun 2 position overlapped.The wiper 63,64 that is used for ink gun group 3b, 3c and 3d is provided with according to the mode identical with the wiper 63,64 that is used for ink gun group 3a.This withdrawn position is equal to wiper withdrawn position of the present invention and block withdrawn position.
As illustrated in fig. 1 and 2, travel mechanism 70 has two axles 90 and 93, four axles 81, four leather belt rollers 74, four leather belt rollers 75, four belts 73, eight gripper shoes 71 and 72 and Poewr transmission mechanism 80.Two axles 90 and 93 and four axles 81 extend along sub scanning direction, and can be supported rotationally around its axis.Four axles 81 are respectively equipped with four leather belt rollers 74.Four leather belt rollers 75 are located on the axle 93.In four belts 73 each is across leather belt roller 74 and 75.Eight gripper shoes 71 are connected with four belts 73 respectively with 72.Poewr transmission mechanism 80 passes to each leather belt roller 74 with rotary power.
Four gripper shoes 71 supporting in the ink gun of ink gun group 3a, 3b, 3c and 3d be included in the wherein row's (left bank in Fig. 1) who extends along sub scanning direction in ink gun 2 block 61 and the wiper 63 that are associated.Four gripper shoes 71 are connected along those parts that main scanning direction extends with belt 73.Block 61 and wiper 63 are provided with in such a manner, thereby they are overlapping with corresponding ink gun 2 along main scanning direction in plane, and overlapping with another ink gun 2 that belongs to the ink gun group identical with corresponding ink gun 2 along sub scanning direction.
Four gripper shoes 72 supporting in the ink gun of ink gun group 3a, 3b, 3c and 3d be included in another row (right side row in Fig. 1) who extends along sub scanning direction in ink gun 2 block 62 and the wiper 64 that are associated.Four gripper shoes 72 are connected along those parts that main scanning direction extends with belt 73.Block 62 and wiper 64 are provided with in such a manner, thereby they are overlapping with corresponding ink gun 2 along main scanning direction in plane, and overlapping with another ink gun 2 that belongs to the ink gun group identical with corresponding ink gun 2 along sub scanning direction.
In other words, with respect to sub scanning direction, eight gripper shoes 71 and 72 are according to the zigzag patterned arrangement opposite with the zigzag arrangement pattern of eight ink guns 2.
Four leather belt rollers 75 are being installed on the axle 93 with respect to main scanning direction and corresponding ink gun group 3a, 3b, 3c and 3d position overlapped place, and its diameter extends along vertical direction.Four leather belt rollers 75 can and counterclockwise be supported rotationally along the clockwise direction in Fig. 2.
Four leather belt rollers 74 are being installed on four axles 81 with respect to main scanning direction and corresponding ink gun group 3a, 3b, 3c and 3d position overlapped place, and its diameter extends along vertical direction.Four leather belt rollers 74 can and counterclockwise be fixed rotationally along the clockwise direction in Fig. 2.
In four belts 73 each is wrapped on a pair of leather belt roller 74 and 75 stretching between them, and is arranged between two ink guns 2 that belong to ink gun group 3a, 3b, 3c and 3d with respect to sub scanning direction.Those parts that belt 73 extends along main scanning direction with respect to vertical direction toward each other.The belt 73 of this embodiment is for having the rubber system flat belt of very narrow width.But this belt 73 can adopt balata belt or the metal system line with circular cross-section.Always, can adopt any member, as long as it is as belt.
Clutch 84 has power shaft 84a that is fixed on the gear 85 and the output shaft 84b that is fixed on the axle 81.Clutch 84 has a kind of like this structure, thereby power shaft 84a is connected with output shaft 84b mutual electromagnetic, thereby power passes to output shaft 84b from power shaft 84a.Therefore, when power shaft 84a rotated, output shaft 84b correspondingly rotated.When power shaft 84a and output shaft 84b disengagement, power no longer passes to output shaft 84b from power shaft 84a.Therefore, even when power shaft 84a rotates, output shaft 84b does not rotate yet.
Also make axle 90 when equidirectional rotates thus so that gear 92 rotates along predetermined direction driving rotation motor 95 (referring to Fig. 4), the rotary power of advancing along inverse direction passes to the power shaft 84a of clutch 84 by four gears 91 and 85.At this moment, when power shaft 84a was connected with output shaft 84b mutual electromagnetic, power shaft 84a passed to output shaft 84b along the rotation of inverse direction.Thus, axle 81 and leather belt roller 74 rotate along inverse direction with output shaft 84b.Therefore, belt 73 is along rotating with the direction of the direction of rotation of gear 92.That is to say, the state by making clutch 84 therein with ink gun group 3a, 3b, 3c and 3d in each corresponding power shaft 84a and the state that connects of output shaft 84b mutual electromagnetic and state that wherein they do not have mutual electromagnetic to connect between switch can make with ink gun group 3a, 3b, 3c and 3d in each corresponding belt 73 optionally move.
Gripper shoe 71 and belt 73 in those parts that main scanning direction extends vertically above one partly be connected.Gripper shoe 72 and belt 73 in those parts that main scanning direction extends vertically below one partly be connected.As shown in Figure 1, eight groups of two guide rail 68c that extend along main scanning direction are formed on the pallet 69.Each group in eight groups is corresponding with each passage 68a.Passage 68a is clipped between corresponding two guide rail 68c with respect to sub scanning direction.Among eight groups of guide rail 68c, along sub scanning direction be arranged side by side to be formed on four groups of the left side one row among Fig. 1 relative with respect to two end sections ground of sub scanning direction with gripper shoe 71.Four groups of guide rail 68c are assembled together with the groove that extends along main scanning direction and are formed on gripper shoe 71 and locate with respect to two ends of sub scanning direction.Thus, four groups of guide rail 68c can slide along groove.The other four groups of guide rail 68c that are formed on the right one row among many rows among Fig. 1 that are arranged side by side along sub scanning direction are relative with respect to two end sections ground of sub scanning direction with gripper shoe 72.These four groups of guide rail 68c are assembled together with the groove that extends along main scanning direction, and are formed on two the end place of gripper shoe 72 with respect to sub scanning direction.Thus, four groups of guide rail 68c can slide along groove.
In maintenance unit 60 with said structure, rotation motor 95 make gear 92 in Fig. 2 when clockwise direction rotates, be installed on the gripper shoe 71 and the block 61 that is associated with ink gun group that clutch 84 electromagnetism wherein connect and wiper 63 are moved to the left with gripper shoe 71 never relative with corresponding ink ejection face 4 withdrawn position (as shown in Figure 1) in Fig. 1.In addition, be installed on the gripper shoe 72 and the block 62 that is associated with ink gun group that clutch 84 electromagnetism wherein connect and wiper 64 move right with gripper shoe 72 never relative with corresponding ink ejection face 4 withdrawn position in Fig. 1.Like this, 61,62 and two wipers 63,64 of two blocks that are associated with ink gun group that clutch 84 electromagnetism wherein connect can be optionally move to the closure position relative with corresponding ink ejection face 4.That is to say that eight blocks 61,62 that are associated with all four ink gun group 3a, 3b, 3c and 3d and eight wipers 63,64 can be connected all four clutches 84 by electromagnetism and move to the position relative with corresponding ink ejection face 4.
On the other hand, rotation motor 95 make gear 92 in Fig. 2 when counterclockwise rotating, be installed on the gripper shoe 71 and the block 61 that is associated with ink gun group that clutch 84 electromagnetism wherein connect and wiper 63 move right from the position relative with corresponding ink ejection face 4 in Fig. 1.In addition, be installed on the gripper shoe 72 and the block 62 that is associated with ink gun group that clutch 84 electromagnetism wherein connect and wiper 64 are moved to the left from the position relative with corresponding ink ejection face 4 in Fig. 1.Like this, block 61,62 that is associated with ink gun group that clutch 84 electromagnetism wherein connect and wiper 63,64 can move to not the withdrawn position relative with corresponding ink ejection face 4.That is to say that eight blocks 61,62 that are associated with all four ink gun group 3a, 3b, 3c and 3d and eight wipers 63,64 can be connected all four clutches 84 by electromagnetism and move to not the withdrawn position relative with corresponding ink ejection face 4.
Next, with reference to Fig. 4 the controller 100 of the operation of control ink-jet printer 1 is described.Fig. 4 is a block diagram, schematically illustrated controller.Controller 100 is by CPU (CPU), ROM (read-only storage), RAM formations such as (easy assess memorizers), and they are as print control unit 101, delivery controller 102 and safeguard controller 103, as shown in Figure 4.
When for example PC (personal computer) 120 received print data from peripheral hardware, print control unit 101 control head drive circuits 111 were from corresponding ink gun 2 ink-jets at controller 100.
When for example PC120 received print data from peripheral hardware, delivery controller 102 control motor drivers 112 were carried motor 97, conveyance of sheets on belt conveyor 8 thus so that drive at controller 100.
Safeguard that controller 103 has a lifting controller 104, pump controller 105 and as the maintenance unit mobile controller 106 of mobile control unit.
Lifting controller 104 is according to attended operation control head elevating mechanism 98, thereby makes ink gun 2 move up and down with lifting frame.
When needs clean, for example when beginning to import to China ink in the ink gun 2 or keeping for a long time not printing when beginning to print after the stop conditions of operation, pump controller 105 control pump drivers 114 in case drive ink supply pump 96 with black coercively fed in ink gun 2.
Maintenance unit mobile controller 106 control motor drivers 115 drive rotation motor 95 thus, thereby make belt 73 move along predetermined direction according to attended operation, thus block a shot 61,62 and wiper 63,64 move with gripper shoe 71,72.Safeguard that controller 106 also controlling and the corresponding clutch 84 of ink gun group 3a, 3b, 3c and 3d that will carry out attended operation.In addition, maintenance unit mobile controller 106 is controlled motor driver 116 according to a kind of like this mode, thereby block height adjustment mechanism 99 makes block 61,62 be moved down into lower height, so that wiper 63,64 can wiping ink ejection face 4.Equally, maintenance unit mobile controller 106 can only switch a clutch 84 so that give belt 73 from rotation motor 95 with transmission of power.Therefore, only the ink ejection face 4 in an ink gun group can be by wiper 63,64 wipings.Here, maintenance unit mobile controller 106 cannot cause optionally that the electromagnetism in the clutch 84 of each group that is used for ink gun group 3a, 3b, 3c and 3d is connected, and can cause that on the contrary the electromagnetism in all four clutches 84 connects.This can shorten and is used for by the required time of all ink ejection faces of wiper 63,64 wipings 4.
Next with reference to Fig. 5 A to 5C and Fig. 6 A to 6C the attended operation that is undertaken by maintenance unit 60 is described.Fig. 5 A, 5B and 5C illustrate along with the time at cleaning operation that carries out on the ink gun and the wiping operation that on ink ejection face, carries out.Fig. 6 A, 6B and 6C illustrate the capping operation of carrying out along with the time with block capping ink ejection face.
In order to carry out cleaning operation so that the ink gun 2 that ejection failure etc. occurs is recovered, lifting controller 104 control head elevating mechanisms 98 like this, thereby target is to be used for the ink gun 2 of cleaning operation and upwards to move towards the ink jet head maintenance position from print position with this target ink gun 2 ink gun 2 in groups, shown in Fig. 5 A.Then, with comprise that target is to be used for the corresponding clutch 84 of the ink gun group of ink gun 2 of cleaning operation to produce electromagnetism and connect, thereby be to be used for the ink gun 2 of cleaning operation and the block 61,62 that is associated with this target ink gun 2 ink gun 2 in groups moves to closure position from the block withdrawn position with target.Then, maintenance unit mobile controller 106 makes rotation motor 95 rotate so that make gear 92 rotate along the clockwise direction in Fig. 5 A, make leather belt roller 74 rotate thus, thereby belt 73 is advanced along main scanning direction along those parts that main scanning direction extends along the counter clockwise direction in Fig. 5 A.At this moment, block 61 is moved to the left in Fig. 1 along main scanning direction, and block a shot 62 along main scanning direction in Fig. 1 to the right (in Fig. 5 A to the right) move.In other words, block 61 and 62 moves along opposite direction with respect to main scanning direction.At this moment, the wiper 63,64 that is installed on the identical support plate 71,72 also moves with block 61,62 respectively.
Then, pump controller 105, carries out cleaning operation thus and is used for from the nozzle 4a of ink gun 2 towards block 61,62 ink-jets to ink gun 2 ink supply from transfer pump 96.After in China ink being cleaned to block 61,62, maintenance unit mobile controller 106 makes rotation motor 95 rotate so that make gear 92 rotate along the counter clockwise direction in Fig. 5 A along inverse direction, and make leather belt roller 74 rotate thus along the clockwise direction in Fig. 5 A, thereby belt 73 is advanced along main scanning direction along those parts that main scanning direction extends, and 61,62 moves to the block withdrawn position from closure position so that block a shot.At this moment, block 61 moves right in Fig. 1 along main scanning direction, and block a shot 62 along main scanning direction in Fig. 1 left (in Fig. 5 A left) move.Then, motor driver 116 is being controlled block height adjustment mechanism 99 so that block a shot and 61,62 move down, shown in Fig. 5 B.At this moment, block 61,62 is moved down into to a certain degree, thereby the far-end (upper end) of wiper 63,64 is higher than the upper end of block 61,62.
Then, lifting controller 104 control head elevating mechanisms 98 are so that make the ink gun 2 that has moved up be moved down into such degree, thereby ink ejection face 4 is a shade below the far-end of wiper 63,64, and is higher than the upper end of block 61,62, shown in Fig. 5 C.Then, maintenance unit mobile controller 106 makes rotation motor 95 rotate so that make gear 92 rotate along the clockwise direction in Fig. 5 C, make leather belt roller 74 rotate thus along the counter clockwise direction in Fig. 5 C, thereby belt 73 is advanced along main scanning direction along those parts that main scanning direction extends, so that wiper 63,64 moves to feasible block 61,62 positions that can arrive closure position from the wiper withdrawn position.At this moment, the far-end that is higher than ink ejection face 4 of wiper 63,64 contacts with ink ejection face 4, and is crooked simultaneously, thereby will wipe attached to the China ink on the ink ejection face 4 owing to cleaning.At this moment, in addition, wiper 63,64 moves towards its outer end with respect to main scanning direction from the inner (end of exterior lateral area 4c) of the ink ejection face 4 of want wiping.Arrive the position of the outer end (another end of exterior lateral area 4c) of ink ejection faces 4 at wiper 63,64, wiper 63,64 stops its wiping operation.
Then, a lifting controller 104 control head elevating mechanisms 98 make that so that ink gun 2 moves up wiper 63,64 and ink ejection face 4 separate.Then, wiper 63,64 moves to the wiper withdrawn position.Like this, finish attended operation, wherein the ink gun 2 that the ink-jet fault occurs is recovered, and will wipe attached to the China ink on the ink ejection face 4 owing to cleaning by cleaning.
Below, will operate describing printer does not therein cover ink ejection faces 4 with block 61,62 for a long time during the downtime that prints on the paper etc. cappings.In this case and in above-mentioned situation, a lifting controller 104 control head elevating mechanisms 98 are so that target is to be used for the ink gun 2 of capping operation and to be moved upwards up to ink jet head maintenance position (referring to Fig. 6 A) with target ink gun 2 ink gun 2 in groups from print position.Then, shown in Fig. 6 B, with comprise that target is to be used for the corresponding clutch 84 of the ink gun group of ink gun 2 of cleaning operation to form electromagnetism and connect, thereby be to be used for the ink gun 2 of capping operation and the block 61,62 that is associated with target ink gun 2 ink gun 2 in groups moves to closure position from the block withdrawn position with target.Then, maintenance unit mobile controller 106 makes rotation motor 95 rotate, so that make gear 92 in Fig. 6 B, rotate along clockwise direction, make leather belt roller 74 in Fig. 6 B, rotate thus, thereby belt 73 is advanced along main scanning direction along those parts that main scanning direction extends along counter clockwise direction.
Then, a lifting controller 104 control head elevating mechanisms 98 are so that ink gun 2 moves down so far forth, thus the last end in contact of ink ejection face 4 and block 61,62, shown in Fig. 6 C.Like this, at ink ejection face 4 with block a shot and form enclosure space between 61,62, this China ink that can prevent to be present in the nozzle 4a becomes dry.
In the above-mentioned ink-jet printer 1 of this embodiment, the ink ejection face 4 of eight ink guns 2 is arranged according to a kind of like this mode, thereby these ink ejection faces 4 form two rows, four ink ejection faces that are arranged side by side along sub scanning direction are drawn together in every package, and the ink ejection face 4 that is included in addition among the different rows is not overlapped with respect to main scanning direction.Therefore, in the zone with respect to main scanning direction and each ink gun 2 adjacency free space has appearred.The a plurality of wipers 63,64 that are associated with corresponding ink gun 2 are arranged in this space.Like this wiper 63,64 is arranged in the free space and makes another space that is specifically designed to the wiper 63,64 that will be provided with therein needn't be set.Therefore, the size that can realize ink-jet printer 1 reduces.In addition, can select wiper 63,64 and make it mobile by being controlled in two wipers, 63,64 assemblies that are associated with each ink gun group of being undertaken by maintenance unit mobile controller 106.Therefore, possible is, for example, by wiper 63,64 only wiping carry out ink ejection face 4 in the ink gun group of cleaning operation and wiping at needs.This can prevent from not carry out ink ejection face 4 in the ink gun group of any cleaning operation thereon by wiper 63,64 wipings vainly.Therefore, can reduce to be formed on grinding away of deterioration of scolding the water coating on the ink ejection face 4 or wiper 63,64.
Even when belt 73 is arranged between ink gun group 3a, 3b, 3c and the 3d, because those parts that belt 73 extends along main scanning direction with respect to vertical direction toward each other, so can make that also the space that is formed between ink gun group 3a, 3b, 3c and the 3d is less.In addition, can be so that the length of belt to be shorter relatively, this can alleviate the load that is applied to as on the rotation motor of drive source.
In addition, a plurality of blocks 61,62 that are associated with each ink gun 2 are arranged in the free space with respect to main scanning direction and each ink gun 2 adjacency.This can further reduce the size of ink-jet printer 1.And, can be by selecting block 61,62 and make it mobile in the assembly that is controlled at two blocks 61,62 that are associated with each ink gun group that is undertaken by maintenance unit mobile controller 106.
In addition, when maintenance unit 60 was arranged in the withdrawn position, the block 61,62 that is associated with ink gun 2 was positioned at such position, thereby the wiper 63,64 that is associated with ink gun 2 is clipped between block 61,62 and the ink gun 2 with respect to main scanning direction.This can further reduce the size of ink-jet printer 1.
Next, with reference to Fig. 7 the ink-jet printer 201 according to second embodiment of the invention is described below.Fig. 7 is the plane according to the major part of the ink-jet printer of second embodiment of the invention.
The ink-jet printer 1 of this embodiment is identical with first embodiment, except travel mechanism 270 has the different structure of structure with the travel mechanism 70 of first embodiment.The member identical with the member of first embodiment will be represented by identical reference number, and not have it to specify.
As shown in Figure 7, the travel mechanism 270 of this embodiment has 290,16 leather belt rollers of axle 291, four belts 273, four gripper shoes 271, four gripper shoes 272 and Poewr transmission mechanisms 280.Axle 290 extends along sub scanning direction, and can be supported rotationally around its axis.Four belts 273 are corresponding with corresponding ink gun group 3a, 3b, 3c and 3d.Each of four belts 273 is wrapped on four leather belt rollers 291 with across four leather belt rollers 291.Four gripper shoes 271 are located to be connected with belt 273 in its end (upper end in Fig. 7) with respect to sub scanning direction.Each of four gripper shoes 271 supporting be included in wherein a row (the right one row in Fig. 7) in each ink gun 2 block 61 and the wiper 63 that are associated.In four gripper shoes 272 each supporting be included in another row (left side one row in Fig. 7) in each ink gun 2 block 62 and the wiper 64 that are associated.Poewr transmission mechanism 280 is delivered to rotary power and each four corresponding leather belt roller 291 among ink gun group 3a, 3b, 3c and the 3d.
In the gripper shoe 271 each supporting be included in Fig. 7 in left bank in each ink gun 2 block 61 and the wiper 63 that are associated.Gripper shoe 271 is connected along the part that main scanning direction extends with belt 273.
In the gripper shoe 272 each supporting be included in Fig. 7 in right side row in each ink gun 2 block 62 and the wiper 64 that are associated.Gripper shoe 272 is connected along the part that main scanning direction extends with belt 273.
In other words, with respect to sub scanning direction, eight gripper shoes 271 and 272 are according to the zigzag patterned arrangement opposite with the zigzag arrangement pattern of eight ink guns 2.
16 leather belt rollers 291 are supported in the pallet 69 rotationally according to a kind of like this mode, thus 61,62 and two wipers 63,64 of two blocks that each in four belts 273 surrounds two ink guns 2 that form the ink gun group and is associated with this ink gun group in plane.Therefore, can be so that the space that is formed between the ink gun group be less.
Also make axle 290 when equidirectional rotates thus so that gear 292 rotates along predetermined direction driving rotation motor 95, the rotary power of advancing along inverse direction passes to the power shaft 284a of clutch 284.At this moment, when power shaft 284a was connected with output shaft 284b mutual electromagnetic, the rotation of power shaft 284a passed to output shaft 284b.Thus, output shaft 284b rotates, and therefore axle 291 rotates along counter clockwise direction in Fig. 7 with gear 285.Therefore, belt 273 is along counterclockwise advancing.That is to say, can by make with ink gun group 3a, 3b, 3c and 3d in the state of each corresponding clutch 284 switch between the state that connects of power shaft 284a and output shaft 284b mutual electromagnetic and the state that wherein they do not have mutual electromagnetic to connect therein make with ink gun group 3a, 3b, 3c and 3d in each corresponding belt 273 optionally move.
In the travel mechanism 270 that has said structure equally, make gear 292 when predetermined direction rotates at rotation motor 95, be installed on the gripper shoe 271 and the block 61 that is associated with ink gun group that clutch 284 electromagnetism wherein connect and wiper 63 are moved to the left in Fig. 7 with never relative with corresponding ink ejection face 4 withdrawn position (as shown in Figure 7) of gripper shoe 271.In addition, be installed on the gripper shoe 272 and the block 62 that is associated with ink gun group that clutch 284 electromagnetism wherein connect and wiper 64 move right in Fig. 7 with never relative with corresponding ink ejection face 4 withdrawn position (as shown in Figure 7) of gripper shoe 272.Like this, 61,62 and two wipers 63,64 of two blocks that are associated with ink gun group that clutch 284 electromagnetism wherein connect can be optionally move to the closure position relative with corresponding ink ejection face 4.That is to say that eight blocks 61,62 that are associated with all four ink gun group 3a, 3b, 3c and 3d and eight wipers 63,64 can be connected four all clutches 284 by electromagnetism and move to the position relative with corresponding ink ejection face 4.
On the other hand, make gear 92 when rotating in the opposite direction at rotation motor 95, be installed on the gripper shoe 271 and the block 61 that is associated with ink gun group that clutch 284 electromagnetism wherein connect and wiper 63 move right from the closure position relative with corresponding ink ejection face 4 in Fig. 7 with predetermined party.In addition, be installed on the gripper shoe 272 and the block 62 that is associated with ink gun group that clutch 284 electromagnetism wherein connect and wiper 64 are moved to the left from the closure position relative with corresponding ink ejection face 4 in Fig. 7.Like this, block 61,62 that is associated with ink gun group that clutch 284 electromagnetism wherein connect and wiper 63,64 can move to not the withdrawn position relative with corresponding ink ejection face 4.That is to say that eight blocks 61,62 that are associated with all four ink gun group 3a, 3b, 3c and 3d and eight wipers 63,64 can be connected all four clutches 84 by electromagnetism and move to not the withdrawn position relative with corresponding ink ejection face 4.
In the above-mentioned ink-jet printer 201 of this embodiment, the ink ejection face 4 of eight ink guns 2 is arranged according to a kind of like this mode, thereby these ink ejection faces 4 form two rows, four ink ejection faces that are arranged side by side along sub scanning direction are drawn together in every package, and the ink ejection face 4 that is included in addition among the different rows is not overlapped with respect to main scanning direction.Therefore, in the zone with respect to main scanning direction and each ink gun 2 adjacency free space has appearred.The a plurality of wipers 63,64 that are associated with corresponding ink gun 2 are arranged in this space.Like this wiper 63,64 is arranged in the free space and makes to be provided with and be specifically designed to another space that wiper 63,64 is set therein.Therefore, the size that can realize ink-jet printer 201 reduces.In addition, can select wiper 63,64 and make it mobile by being controlled in two wipers, 63,64 assemblies that are associated with each ink gun group of being undertaken by maintenance unit mobile controller 106.Therefore, possible is, for example, by wiper 63,64 only wiping carry out ink ejection face 4 in the ink gun group of cleaning operation and wiping at needs.This can prevent from not carry out ink ejection face 4 in the ink gun group of any cleaning operation thereon by wiper 63,64 wipings vainly.Therefore, can reduce to be formed on grinding away of degeneration of scolding the water coating on the ink ejection face 4 or wiper 63,64.
Next, with reference to Fig. 8 the ink-jet printer 301 according to third embodiment of the invention is described.Fig. 8 is the plane according to the major part of the ink-jet printer of third embodiment of the invention.
In the ink-jet printer 301 of this embodiment, ink gun group 303a, 303b, 303c and 303d are orientated along two rightabouts in abutting connection with the ink gun group with respect to sub scanning direction, and this layout with ink gun group 3a, 3b, 3c and the 3d of first embodiment is different.Therefore, also the layout with 61,62 and eight wipers 63,64 of eight blocks of first embodiment is different for eight blocks 361,362 and the layout of eight wipers 363,364.In addition, the maintenance unit 360 of ink-jet printer 301 has the slightly different travel mechanism 370 with the travel mechanism 270 of second embodiment.Except top, the 3rd embodiment is identical with first embodiment.Identical in ink gun 302, block 361,362 and the structure of wiper 363,364 and first embodiment, but have only its layout different with in the first embodiment.The member identical with the member of first embodiment represented by identical reference number, and do not had it to specify.
As shown in Figure 8, eight ink guns 302 of this embodiment are arranged to pattern in a zigzag according to a kind of like this mode, thereby ink ejection face 4 forms two rows, four ink ejection faces 4 that are arranged side by side along sub scanning direction are drawn together in every package, and the ink ejection face 4 that is included in addition among the different rows is not overlapped with respect to main scanning direction.Eight ink guns 302 are divided into four ink gun group 303a, 303b, 303c and 303d, and each ink gun group comprises two ink guns 302.The ink ejection face 4 of two ink guns 302 is adjacent one another are and belong to different rows with respect to sub scanning direction.
Four ink gun group 303a, 303b, 303c and 303d are arranged side by side along sub scanning direction.One in (one on the left side in Fig. 8) in two ink guns 302 in ink gun group 303a and two the ink gun groups 302 in ink gun group 303b is arranged in the position identical and adjacent one another are with respect to sub scanning direction with respect to main scanning direction.One in two ink guns 302 in ink gun group 303b another (one on the right in Fig. 8) and two the ink gun groups 302 in ink gun group 303c is arranged in the position identical and adjacent one another are with respect to sub scanning direction with respect to main scanning direction.In two ink guns 302 in ink gun group 303c one with two ink guns 302 in ink gun group 303d in one be arranged in the position identical and adjacent one another are with respect to sub scanning direction with respect to main scanning direction.
Therefore, can be arranged on the position identical with 361,362 and two wipers 363,364 of two blocks that two adjacent ink guns 302 of two groups of the adjacency that belongs to ink gun group 303a, 303b, 303c and 303d are associated with respect to main scanning direction, and adjacent one another are with respect to sub scanning direction.
Each its ink ejection face of two ink guns 24 that belongs to ink gun group 303a, 303b, 303c and 303d overlaps each other with respect to sub scanning direction, and it is the identical structure of structure with ink gun group 3a, 3b, 3c and the 3d of first embodiment.
Travel mechanism 370 has 390,16 leather belt rollers of axle 391, four belts 373, four gripper shoes 371, four gripper shoes 372 and Poewr transmission mechanisms 380.Axle 390 extends along sub scanning direction, and can be supported rotationally around its axis.Four belts 373 are corresponding with corresponding ink gun group 303a, 303b, 303c and 303d.Each of four belts 373 is wrapped on four leather belt rollers 391 with across four leather belt rollers 391.Four gripper shoes 371 are located to be connected with belt 373 in its end (upper end in Fig. 8) with respect to sub scanning direction.Each of four gripper shoes 371 supporting be included in wherein a row (the right one row in Fig. 8) in each ink gun 302 block 361 and the wiper 363 that are associated.In four gripper shoes 372 each supporting be included in another row (left side one row in Fig. 8) in each ink gun 302 block 362 and the wiper 364 that are associated.Poewr transmission mechanism 380 passes to rotary power and each corresponding leather belt roller 391 among ink gun group 303a, 303b, 303c and the 303d.
In the gripper shoe 371 each supporting be included in Fig. 8 in left bank in each ink gun 302 block 361 and the wiper 363 that are associated.Gripper shoe 371 is connected along the part that main scanning direction extends with belt 373.
In the gripper shoe 372 each supporting be included in Fig. 8 in right side row in each ink gun 302 block 362 and the wiper 364 that are associated.Gripper shoe 372 is connected along the part that main scanning direction extends with belt 373.
16 leather belt rollers 391 are supported in the pallet 69 rotationally according to a kind of like this mode, thus 361,362 and two wipers 363,364 of two blocks that each in four belts 373 surrounds two ink guns 302 that form the ink gun group and is associated with this ink gun group in plane.Therefore, can be so that the space that is formed between the ink gun group be less.
Also make axle 390 when equidirectional rotates thus so that gear 392 rotates along predetermined direction driving rotation motor 95, the rotary power of advancing along equidirectional passes to the power shaft 384a of clutch 384.At this moment, when power shaft 384a was connected with output shaft 384b mutual electromagnetic, the rotation of power shaft 384a passed to output shaft 384b, and therefore this output shaft rotates.When output shaft 384b rotated, therefore gear 396a rotated.Thus, the axle 391 with gear 396a meshed gears 385a and fixed gear 385a rotates along clockwise direction in Fig. 8.Therefore, belt 373 is advanced along clockwise direction.And when output shaft 384b rotated, therefore gear 396b rotated.Therefore, the axle 391 with gear 396b meshed gears 385b and fixed gear 385b rotates along counter clockwise direction in Fig. 8.Therefore, belt 373 is along counterclockwise advancing.That is to say, can by make with ink gun group 303a, 303b, 303c and 303d in the state of each corresponding clutch 384 switch between the state that connects of power shaft 384a and output shaft 384b mutual electromagnetic and the state that wherein they do not have mutual electromagnetic to connect therein each belt 373 optionally moved.
In the travel mechanism 370 that has said structure equally, make gear 392 when predetermined direction rotates at rotation motor 95, be installed on the gripper shoe 371 and the block 361 that is associated with ink gun group that clutch 384 electromagnetism wherein connect and wiper 363 are moved to the left in Fig. 8 with never relative with corresponding ink ejection face 4 withdrawn position (as shown in Figure 8) of gripper shoe 271.In addition, be installed on the gripper shoe 372 and the block 362 that is associated with ink gun group that clutch 384 electromagnetism wherein connect and wiper 364 move right with gripper shoe 372 never relative with corresponding ink ejection face 4 withdrawn position in Fig. 8.Like this, 361,362 and two wipers 363,364 of two blocks that are associated with ink gun group that clutch 384 electromagnetism wherein connect can move to the closure position relative with corresponding ink ejection face 4.That is to say that eight blocks 361,362 that are associated with all four ink gun group 303a, 303b, 303c and 303d and eight wipers 363,364 can be connected all four clutches 384 by electromagnetism and move to the position relative with corresponding ink ejection face 4.
On the other hand, make gear 392 when rotating in the opposite direction at rotation motor 95, be installed on the gripper shoe 371 and the block 361 that is associated with ink gun group that clutch 384 electromagnetism wherein connect and wiper 363 move right from the closure position relative with corresponding ink ejection face 4 in Fig. 8 with predetermined party.In addition, be installed on the gripper shoe 372 and the block 362 that is associated with ink gun group that clutch 384 electromagnetism wherein connect and wiper 364 are moved to the left from the closure position relative with corresponding ink ejection face 4 in Fig. 8.Like this, block 361,362 that is associated with ink gun group that clutch 384 electromagnetism wherein connect and wiper 363,364 can move to not the withdrawn position relative with corresponding ink ejection face 4.That is to say that eight blocks 361,362 that are associated with all four ink gun group 303a, 303b, 303c and 303d and eight wipers 363,364 can be connected all four clutches 384 by electromagnetism and move to not the withdrawn position relative with corresponding ink ejection face 4.
In the ink-jet printer 301 of above-mentioned this embodiment, the ink ejection face 4 of eight ink guns 302 is arranged according to a kind of like this mode, thereby these ink ejection faces 4 form two rows, four ink ejection faces that are arranged side by side along sub scanning direction are drawn together in every package, and the ink ejection face 4 that is included in addition among the different rows is not overlapped with respect to main scanning direction.Therefore, in the zone with respect to main scanning direction and each ink gun 302 adjacency free space has appearred.The a plurality of wipers 363,364 that are associated with corresponding ink gun 302 are arranged in this space.Like this wiper 363,364 is arranged in the free space and makes to be provided with and be specifically designed to another space that wiper 363,364 is set therein.Therefore, the size that can realize ink-jet printer 301 reduces.In addition, can select wiper 363,364 and make it mobile by being controlled in two wipers, 363,364 assemblies that are associated with each ink gun group of being undertaken by maintenance unit mobile controller 106.Therefore, possible is, for example, by wiper 363,64 only wiping carry out ink ejection face 4 in the ink gun group of cleaning operation and wiping at needs.This can prevent from not carry out ink ejection face 4 in the ink gun group of any cleaning operation thereon by wiper 363,364 wipings vainly.Therefore, can reduce to be formed on grinding away of degeneration of scolding the water coating on the ink ejection face 4 or wiper 363,364.
In the above-described embodiment, two ink guns that spray the same color China ink are arranged to print continuously under these two ink gun ink-jets allow not have along main scanning direction the situation of interruption when forming image.But two ink guns can be not overlapped so that allow to have along main scanning direction the discontinuous printing of interruption when forming image with respect to sub scanning direction.Ink-jet printer according to these embodiments can not comprise block.
In the above-described embodiment, by the rotation driving of single rotation motor, the belt operation is moved optionally to make block and wiper.But, different rotation motors can be set for corresponding belt.In this case, by the control rotation motor, belt is optionally moved so that make that on ink gun group basis block and wiper selectively move.That is to say, can be provided with rotation motor as switching device shifter for each ink gun group.At this moment, clutch needn't be set.
In addition, above-mentioned embodiment is used for for the present invention is applied to comprise from the embodiment of the ink-jet printer of a plurality of ink guns of nozzle ink jet.But, this ink gun be not the present invention applicable to unique things.For example, the present invention can be applied to comprise the various image recorders of a plurality of jet head liquids, described a plurality of jet head liquid is used to spray conductive paste to form tiny wiring pattern on substrate, be used for spraying luminous organic material with the formation high resolution display, and be used for spraying optical plastic to form for example optical waveguide of very little electronic device to substrate to substrate.
Though describe the present invention in conjunction with the specific embodiments that provides above, obvious many alternatives, modification and variation will be conspicuous for those of ordinary skills.Therefore, the preferred embodiment of the invention that provides above is intended to exemplify explanation, rather than limits.Under situation about not breaking away from, can make various variations as the spirit and scope of the invention defined in the following claim.
Claims (9)
1. image recorder comprises:
A plurality of jet head liquids, described a plurality of jet head liquid has the jet face that is arranged in such a way respectively, described mode makes described jet face form two rows that extend in one direction, make also that in addition two jet faces that are included among the different rows do not overlap each other along the vertical direction vertical with a described direction for direction in the plane of described jet face, described a plurality of jet head liquid is divided into a plurality of injector head groups, and each injector head group comprises two corresponding jet head liquids with different rows;
Recording medium conveyance mechanism, described recording medium conveyance mechanism when making recording medium relative with described jet face on a described direction conveying recording medium;
A plurality of wipers, the jet face of the described jet head liquid of described a plurality of wiper wipes; And
Travel mechanism, described travel mechanism keeps and makes described two wipers mobile on two rightabouts for described vertical direction when described jet face contacts being used for two wipers of two jet faces that wiping belongs to two jet head liquids of each injector head group in making described wiper
Wherein, when in not relative wiper withdrawn position with described jet face, the wiper relevant with a jet head liquid in the jet head liquid that belongs to each injector head group is arranged to along a described vertical direction and a described jet head liquid overlapping, another jet head liquid of also being arranged in addition in a described direction and the described jet head liquid is overlapping, simultaneously, when in described wiper withdrawn position, the wiper relevant with described another jet head liquid is arranged to along described vertical direction and described another jet head liquid overlapping, also is arranged to along a described direction and a described jet head liquid overlapping in addition.
2. image recorder as claimed in claim 1, wherein:
Each injector head group in described a plurality of injector head group is made up of two jet head liquids of the liquid that sprays same color;
Described travel mechanism optionally moves described a plurality of wipers in the unit of described two wipers relevant with described injector head group; And
Described image recorder also comprises mobile controller, described mobile controller is controlled described travel mechanism as follows, described mode make and two described injector head groups of wiper wipes relevant with selected injector head group in described a plurality of injector head groups in two jet faces.
3. image recorder as claimed in claim 2, wherein:
Described travel mechanism comprises
A plurality of belts, each belt in described a plurality of belts connects with described two wipers relevant with described injector head group, and advances along described vertical direction, makes described two wipers move on described two rightabouts thus; And
A plurality of switching device shifters, each switching device shifter in described a plurality of switching device shifters can from drive source to the state of described belt transferring power with between the state of described belt transferring power, do not switch from described drive source; And
Described mobile controller switches to from the state of described drive source to described belt transferring power at least one switching device shifter in the described switching device shifter.
4. image recorder as claimed in claim 3, wherein said mobile controller switches to all described switching device shifters from the state of described drive source to described belt transferring power.
5. image recorder as claimed in claim 3, each belt in wherein said a plurality of belts are arranged in to surround in the plane and belong to described two jet head liquids of described injector head group and described two wipers relevant with described injector head group.
6. image recorder as claimed in claim 3, each belt in wherein said a plurality of belt is arranged between described two jet head liquids that belong to described injector head group as follows, described mode make the part of on described vertical direction, extending of described belt for vertical direction toward each other.
7. image recorder as claimed in claim 3 also comprises by contacting a plurality of blocks that cover described jet face with described jet face,
Wherein each belt connects with two blocks relevant with described two jet head liquids that belong to described injector head group, and advance along described vertical direction, thereby described two blocks are moving between closure position relative with described jet face and not relative with described jet face block withdrawn position on described two rightabouts of described vertical direction.
8. image recorder as claimed in claim 7, wherein, when in described block withdrawn position, the described block relevant with a described jet head liquid is arranged to along a described vertical direction and a described jet head liquid overlapping, also be arranged to along a described direction and described another jet head liquid overlapping in addition, simultaneously, when in described block withdrawn position, the described block relevant with described another jet head liquid is arranged to along described vertical direction and described another jet head liquid overlapping, also is arranged to along a described direction and a described jet head liquid overlapping in addition.
9. image recorder as claimed in claim 8, wherein, when described wiper is arranged in the described wiper withdrawn position, the described block relevant with described jet head liquid is arranged in as upper/lower positions, and described position makes that the described wiper relevant with described jet head liquid is sandwiched between described block and the described jet head liquid for described vertical direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007194072 | 2007-07-26 | ||
| JP2007194072A JP4924266B2 (en) | 2007-07-26 | 2007-07-26 | Liquid ejection device |
| JP2007-194072 | 2007-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101352967A true CN101352967A (en) | 2009-01-28 |
| CN101352967B CN101352967B (en) | 2011-04-06 |
Family
ID=39877491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101311089A Expired - Fee Related CN101352967B (en) | 2007-07-26 | 2008-07-28 | Image recording apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7857419B2 (en) |
| EP (1) | EP2018965B1 (en) |
| JP (1) | JP4924266B2 (en) |
| CN (1) | CN101352967B (en) |
| DE (1) | DE602008000654D1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150685A (en) * | 2015-06-15 | 2015-12-16 | 温州启昊激光科技有限公司 | High speed ink-jet digital printing machine |
| CN110293776A (en) * | 2018-03-23 | 2019-10-01 | 卡西欧计算机株式会社 | Printing element, printing equipment and pressing device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4910926B2 (en) | 2007-07-26 | 2012-04-04 | ブラザー工業株式会社 | Image recording device |
| DE602008000696D1 (en) | 2007-07-26 | 2010-04-08 | Brother Ind Ltd | Image recording apparatus |
| JP5883840B2 (en) * | 2013-10-31 | 2016-03-15 | 京セラドキュメントソリューションズ株式会社 | Inkjet recording device |
| TWI712509B (en) | 2016-05-02 | 2020-12-11 | 愛爾蘭商滿捷特科技公司 | Printer having printhead extending and retracting through maintenance module |
| US20210129536A1 (en) * | 2017-10-10 | 2021-05-06 | Hewlett-Packard Development Company, L.P. | Slidable service assemblies |
| US20210356310A1 (en) * | 2018-04-30 | 2021-11-18 | Hewlett-Packard Development Company, L.P. | Particulate height calculations from pressure gradients |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003072044A (en) * | 2001-09-07 | 2003-03-12 | Noritsu Koki Co Ltd | Ink-jet printer |
| US6595619B2 (en) * | 2001-10-30 | 2003-07-22 | Hewlett-Packard Development Company, L.P. | Printing mechanism service station for a printbar assembly |
| US6637858B2 (en) * | 2001-10-30 | 2003-10-28 | Hewlett-Packard Development Company, L.P. | Printing mechanism hinged printbar assembly |
| JP4442156B2 (en) * | 2003-02-17 | 2010-03-31 | 富士ゼロックス株式会社 | Recording device |
| JP2005103781A (en) * | 2003-09-29 | 2005-04-21 | Brother Ind Ltd | Inkjet printer |
| JP4029824B2 (en) | 2003-10-31 | 2008-01-09 | ブラザー工業株式会社 | Inkjet printer and control method thereof |
| JP2005161796A (en) * | 2003-12-05 | 2005-06-23 | Canon Inc | Wiping mechanism and ink-jet recording device using the same mechanism |
| JP4470761B2 (en) * | 2005-03-04 | 2010-06-02 | ブラザー工業株式会社 | Image forming apparatus |
| JP2006289648A (en) * | 2005-04-06 | 2006-10-26 | Olympus Corp | Image forming apparatus |
| JP4241795B2 (en) * | 2006-09-29 | 2009-03-18 | ブラザー工業株式会社 | Liquid ejector |
| JP4924265B2 (en) | 2007-07-26 | 2012-04-25 | ブラザー工業株式会社 | Liquid ejection apparatus and image recording apparatus |
| JP4910926B2 (en) | 2007-07-26 | 2012-04-04 | ブラザー工業株式会社 | Image recording device |
| DE602008000696D1 (en) | 2007-07-26 | 2010-04-08 | Brother Ind Ltd | Image recording apparatus |
| JP2009028973A (en) | 2007-07-26 | 2009-02-12 | Brother Ind Ltd | Liquid delivering apparatus and image recording apparatus |
-
2007
- 2007-07-26 JP JP2007194072A patent/JP4924266B2/en not_active Expired - Fee Related
-
2008
- 2008-07-25 DE DE602008000654T patent/DE602008000654D1/en active Active
- 2008-07-25 EP EP08013484A patent/EP2018965B1/en not_active Expired - Fee Related
- 2008-07-28 US US12/181,213 patent/US7857419B2/en active Active
- 2008-07-28 CN CN2008101311089A patent/CN101352967B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150685A (en) * | 2015-06-15 | 2015-12-16 | 温州启昊激光科技有限公司 | High speed ink-jet digital printing machine |
| CN110293776A (en) * | 2018-03-23 | 2019-10-01 | 卡西欧计算机株式会社 | Printing element, printing equipment and pressing device |
Also Published As
| Publication number | Publication date |
|---|---|
| US7857419B2 (en) | 2010-12-28 |
| CN101352967B (en) | 2011-04-06 |
| DE602008000654D1 (en) | 2010-04-01 |
| JP2009028974A (en) | 2009-02-12 |
| US20090027447A1 (en) | 2009-01-29 |
| JP4924266B2 (en) | 2012-04-25 |
| EP2018965B1 (en) | 2010-02-17 |
| EP2018965A1 (en) | 2009-01-28 |
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